3     ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
20 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)  in snd_ad1816a_busy_wait()  argument
28 	dev_warn(chip->card->dev, "chip busy.\n");  in snd_ad1816a_busy_wait()
32 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)  in snd_ad1816a_in()  argument
34 	snd_ad1816a_busy_wait(chip);  in snd_ad1816a_in()
38 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,  in snd_ad1816a_out()  argument
41 	snd_ad1816a_busy_wait(chip);  in snd_ad1816a_out()
45 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,  in snd_ad1816a_out_mask()  argument
48 	snd_ad1816a_out(chip, reg,  in snd_ad1816a_out_mask()
49 		(value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));  in snd_ad1816a_out_mask()
52 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)  in snd_ad1816a_read()  argument
54 	snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);  in snd_ad1816a_read()
55 	return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |  in snd_ad1816a_read()
56 		(snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);  in snd_ad1816a_read()
59 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,  in snd_ad1816a_write()  argument
62 	snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);  in snd_ad1816a_write()
63 	snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);  in snd_ad1816a_write()
64 	snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);  in snd_ad1816a_write()
67 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,  in snd_ad1816a_write_mask()  argument
70 	snd_ad1816a_write(chip, reg,  in snd_ad1816a_write_mask()
71 		(value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));  in snd_ad1816a_write_mask()
75 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,  in snd_ad1816a_get_format()  argument
97 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)  in snd_ad1816a_open()  argument
101 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_open()
103 	if (chip->mode & mode) {  in snd_ad1816a_open()
104 		spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_open()
110 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_open()
112 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_open()
116 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_open()
118 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_open()
122 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_open()
124 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_open()
127 	chip->mode |= mode;  in snd_ad1816a_open()
129 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_open()
133 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)  in snd_ad1816a_close()  argument
137 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_close()
141 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_close()
143 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_close()
147 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_close()
149 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_close()
153 		snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,  in snd_ad1816a_close()
155 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_close()
158 	chip->mode &= ~mode;  in snd_ad1816a_close()
159 	if (!(chip->mode & AD1816A_MODE_OPEN))  in snd_ad1816a_close()
160 		chip->mode = 0;  in snd_ad1816a_close()
162 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_close()
166 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,  in snd_ad1816a_trigger()  argument
174 		spin_lock(&chip->lock);  in snd_ad1816a_trigger()
181 			snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,  in snd_ad1816a_trigger()
184 			snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,  in snd_ad1816a_trigger()
186 		spin_unlock(&chip->lock);  in snd_ad1816a_trigger()
189 		dev_warn(chip->card->dev, "invalid trigger mode 0x%x.\n", what);  in snd_ad1816a_trigger()
198 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_playback_trigger()  local
199 	return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,  in snd_ad1816a_playback_trigger()
205 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_capture_trigger()  local
206 	return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,  in snd_ad1816a_capture_trigger()
212 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_playback_prepare()  local
217 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_playback_prepare()
219 	chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);  in snd_ad1816a_playback_prepare()
220 	snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,  in snd_ad1816a_playback_prepare()
223 	snd_dma_program(chip->dma1, runtime->dma_addr, size,  in snd_ad1816a_playback_prepare()
227 	if (chip->clock_freq)  in snd_ad1816a_playback_prepare()
228 		rate = (rate * 33000) / chip->clock_freq;  in snd_ad1816a_playback_prepare()
229 	snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);  in snd_ad1816a_playback_prepare()
230 	snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,  in snd_ad1816a_playback_prepare()
232 		snd_ad1816a_get_format(chip, runtime->format,  in snd_ad1816a_playback_prepare()
235 	snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,  in snd_ad1816a_playback_prepare()
238 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_playback_prepare()
244 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_capture_prepare()  local
249 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_capture_prepare()
251 	chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);  in snd_ad1816a_capture_prepare()
252 	snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,  in snd_ad1816a_capture_prepare()
255 	snd_dma_program(chip->dma2, runtime->dma_addr, size,  in snd_ad1816a_capture_prepare()
259 	if (chip->clock_freq)  in snd_ad1816a_capture_prepare()
260 		rate = (rate * 33000) / chip->clock_freq;  in snd_ad1816a_capture_prepare()
261 	snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);  in snd_ad1816a_capture_prepare()
262 	snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,  in snd_ad1816a_capture_prepare()
264 		snd_ad1816a_get_format(chip, runtime->format,  in snd_ad1816a_capture_prepare()
267 	snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,  in snd_ad1816a_capture_prepare()
270 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_capture_prepare()
277 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_playback_pointer()  local
279 	if (!(chip->mode & AD1816A_MODE_PLAYBACK))  in snd_ad1816a_playback_pointer()
281 	ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);  in snd_ad1816a_playback_pointer()
287 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_capture_pointer()  local
289 	if (!(chip->mode & AD1816A_MODE_CAPTURE))  in snd_ad1816a_capture_pointer()
291 	ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);  in snd_ad1816a_capture_pointer()
298 	struct snd_ad1816a *chip = dev_id;  in snd_ad1816a_interrupt()  local
301 	spin_lock(&chip->lock);  in snd_ad1816a_interrupt()
302 	status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);  in snd_ad1816a_interrupt()
303 	spin_unlock(&chip->lock);  in snd_ad1816a_interrupt()
305 	if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)  in snd_ad1816a_interrupt()
306 		snd_pcm_period_elapsed(chip->playback_substream);  in snd_ad1816a_interrupt()
308 	if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)  in snd_ad1816a_interrupt()
309 		snd_pcm_period_elapsed(chip->capture_substream);  in snd_ad1816a_interrupt()
311 	if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)  in snd_ad1816a_interrupt()
312 		snd_timer_interrupt(chip->timer, chip->timer->sticks);  in snd_ad1816a_interrupt()
314 	spin_lock(&chip->lock);  in snd_ad1816a_interrupt()
315 	snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);  in snd_ad1816a_interrupt()
316 	spin_unlock(&chip->lock);  in snd_ad1816a_interrupt()
361 	struct snd_ad1816a *chip = snd_timer_chip(timer);  in snd_ad1816a_timer_close()  local
362 	snd_ad1816a_close(chip, AD1816A_MODE_TIMER);  in snd_ad1816a_timer_close()
368 	struct snd_ad1816a *chip = snd_timer_chip(timer);  in snd_ad1816a_timer_open()  local
369 	snd_ad1816a_open(chip, AD1816A_MODE_TIMER);  in snd_ad1816a_timer_open()
385 	struct snd_ad1816a *chip = snd_timer_chip(timer);  in snd_ad1816a_timer_start()  local
386 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_timer_start()
387 	bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);  in snd_ad1816a_timer_start()
390 		snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,  in snd_ad1816a_timer_start()
393 		snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_timer_start()
396 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_timer_start()
403 	struct snd_ad1816a *chip = snd_timer_chip(timer);  in snd_ad1816a_timer_stop()  local
404 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_timer_stop()
406 	snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,  in snd_ad1816a_timer_stop()
409 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_timer_stop()
426 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_playback_open()  local
430 	error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK);  in snd_ad1816a_playback_open()
434 	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);  in snd_ad1816a_playback_open()
435 	snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);  in snd_ad1816a_playback_open()
436 	chip->playback_substream = substream;  in snd_ad1816a_playback_open()
442 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_capture_open()  local
446 	error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE);  in snd_ad1816a_capture_open()
450 	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);  in snd_ad1816a_capture_open()
451 	snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);  in snd_ad1816a_capture_open()
452 	chip->capture_substream = substream;  in snd_ad1816a_capture_open()
458 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_playback_close()  local
460 	chip->playback_substream = NULL;  in snd_ad1816a_playback_close()
461 	snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);  in snd_ad1816a_playback_close()
467 	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);  in snd_ad1816a_capture_close()  local
469 	chip->capture_substream = NULL;  in snd_ad1816a_capture_close()
470 	snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);  in snd_ad1816a_capture_close()
475 static void snd_ad1816a_init(struct snd_ad1816a *chip)  in snd_ad1816a_init()  argument
479 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_init()
481 	snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);  in snd_ad1816a_init()
482 	snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,  in snd_ad1816a_init()
484 	snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,  in snd_ad1816a_init()
486 	snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);  in snd_ad1816a_init()
487 	snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,  in snd_ad1816a_init()
489 	snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);  in snd_ad1816a_init()
490 	snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);  in snd_ad1816a_init()
492 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_init()
496 void snd_ad1816a_suspend(struct snd_ad1816a *chip)  in snd_ad1816a_suspend()  argument
501 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_suspend()
503 		chip->image[reg] = snd_ad1816a_read(chip, reg);  in snd_ad1816a_suspend()
504 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_suspend()
507 void snd_ad1816a_resume(struct snd_ad1816a *chip)  in snd_ad1816a_resume()  argument
512 	snd_ad1816a_init(chip);  in snd_ad1816a_resume()
513 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_resume()
515 		snd_ad1816a_write(chip, reg, chip->image[reg]);  in snd_ad1816a_resume()
516 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_resume()
520 static int snd_ad1816a_probe(struct snd_ad1816a *chip)  in snd_ad1816a_probe()  argument
524 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_probe()
526 	switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {  in snd_ad1816a_probe()
528 		chip->hardware = AD1816A_HW_AD1815;  in snd_ad1816a_probe()
531 		chip->hardware = AD1816A_HW_AD18MAX10;  in snd_ad1816a_probe()
534 		chip->hardware = AD1816A_HW_AD1816A;  in snd_ad1816a_probe()
537 		chip->hardware = AD1816A_HW_AUTO;  in snd_ad1816a_probe()
540 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_probe()
544 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)  in snd_ad1816a_chip_id()  argument
546 	switch (chip->hardware) {  in snd_ad1816a_chip_id()
551 		dev_warn(chip->card->dev, "Unknown chip version %d:%d.\n",  in snd_ad1816a_chip_id()
552 			 chip->version, chip->hardware);  in snd_ad1816a_chip_id()
559 		       struct snd_ad1816a *chip)  in snd_ad1816a_create()  argument
563 	chip->irq = -1;  in snd_ad1816a_create()
564 	chip->dma1 = -1;  in snd_ad1816a_create()
565 	chip->dma2 = -1;  in snd_ad1816a_create()
567 	chip->res_port = devm_request_region(card->dev, port, 16, "AD1816A");  in snd_ad1816a_create()
568 	if (!chip->res_port) {  in snd_ad1816a_create()
573 			     "AD1816A", (void *) chip)) {  in snd_ad1816a_create()
577 	chip->irq = irq;  in snd_ad1816a_create()
578 	card->sync_irq = chip->irq;  in snd_ad1816a_create()
583 	chip->dma1 = dma1;  in snd_ad1816a_create()
588 	chip->dma2 = dma2;  in snd_ad1816a_create()
590 	chip->card = card;  in snd_ad1816a_create()
591 	chip->port = port;  in snd_ad1816a_create()
592 	spin_lock_init(&chip->lock);  in snd_ad1816a_create()
594 	error = snd_ad1816a_probe(chip);  in snd_ad1816a_create()
598 	snd_ad1816a_init(chip);  in snd_ad1816a_create()
619 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device)  in snd_ad1816a_pcm()  argument
624 	error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm);  in snd_ad1816a_pcm()
631 	pcm->private_data = chip;  in snd_ad1816a_pcm()
632 	pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;  in snd_ad1816a_pcm()
634 	strcpy(pcm->name, snd_ad1816a_chip_id(chip));  in snd_ad1816a_pcm()
635 	snd_ad1816a_init(chip);  in snd_ad1816a_pcm()
637 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev,  in snd_ad1816a_pcm()
638 				       64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);  in snd_ad1816a_pcm()
640 	chip->pcm = pcm;  in snd_ad1816a_pcm()
644 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)  in snd_ad1816a_timer()  argument
652 	tid.card = chip->card->number;  in snd_ad1816a_timer()
655 	error = snd_timer_new(chip->card, "AD1816A", &tid, &timer);  in snd_ad1816a_timer()
658 	strcpy(timer->name, snd_ad1816a_chip_id(chip));  in snd_ad1816a_timer()
659 	timer->private_data = chip;  in snd_ad1816a_timer()
660 	chip->timer = timer;  in snd_ad1816a_timer()
681 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_get_mux()  local
685 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_get_mux()
686 	val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);  in snd_ad1816a_get_mux()
687 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_get_mux()
695 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_put_mux()  local
705 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_put_mux()
706 	change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;  in snd_ad1816a_put_mux()
707 	snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);  in snd_ad1816a_put_mux()
708 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_put_mux()
737 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_get_single()  local
744 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_get_single()
745 	ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;  in snd_ad1816a_get_single()
746 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_get_single()
754 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_put_single()  local
767 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_put_single()
768 	old_val = snd_ad1816a_read(chip, reg);  in snd_ad1816a_put_single()
771 	snd_ad1816a_write(chip, reg, val);  in snd_ad1816a_put_single()
772 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_put_single()
802 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_get_double()  local
811 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_get_double()
812 	val = snd_ad1816a_read(chip, reg);  in snd_ad1816a_get_double()
815 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_get_double()
825 	struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);  in snd_ad1816a_put_double()  local
843 	spin_lock_irqsave(&chip->lock, flags);  in snd_ad1816a_put_double()
844 	old_val = snd_ad1816a_read(chip, reg);  in snd_ad1816a_put_double()
847 	snd_ad1816a_write(chip, reg, val1);  in snd_ad1816a_put_double()
848 	spin_unlock_irqrestore(&chip->lock, flags);  in snd_ad1816a_put_double()
904 int snd_ad1816a_mixer(struct snd_ad1816a *chip)  in snd_ad1816a_mixer()  argument
910 	if (snd_BUG_ON(!chip || !chip->card))  in snd_ad1816a_mixer()
913 	card = chip->card;  in snd_ad1816a_mixer()
915 	strcpy(card->mixername, snd_ad1816a_chip_id(chip));  in snd_ad1816a_mixer()
918 		err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip));  in snd_ad1816a_mixer()